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Level of database normalization
First normal form (1NF) is the most basic level of database normalization defined by English computer scientist Edgar F. Codd, the inventor of the relational
First_normal_form
Level of database normalization
Third normal form (3NF) is a level of database normalization defined by English computer scientist Edgar F. Codd. A relation (or table, in SQL) is in
Third_normal_form
Normal form used in database normalization
Fourth normal form (4NF) is a normal form used in database normalization. Introduced by Ronald Fagin in 1977, 4NF is the next level of normalization after
Fourth_normal_form
Reduction of data redundancy
database in accordance with a series of normal forms to reduce data redundancy and improve data integrity. It was first proposed by British computer scientist
Database_normalization
Form in relational database normalization
Sixth normal form (6NF) is a normal form used in relational database normalization which extends the relational algebra and generalizes relational operators
Sixth_normal_form
Form of a matrix indicating its eigenvalues and their algebraic multiplicities
linear algebra, a Jordan normal form, also known as a Jordan canonical form, is an upper triangular matrix of a particular form called a Jordan matrix representing
Jordan_normal_form
Level of database normalization
Edgar F. Codd. A relation (or a table, in SQL) is in 2NF if it is in first normal form (1NF) and contains no partial dependencies. A partial dependency occurs
Second_normal_form
Database normalization
Fifth normal form (5NF), also known as projection–join normal form (PJ/NF), is a level of database normalization designed to remove redundancy in relational
Fifth_normal_form
Standard form of Boolean function
In Boolean algebra, a formula is in conjunctive normal form (CNF) or clausal normal form if it is a conjunction of one or more clauses, where a clause
Conjunctive_normal_form
Formalism of first-order logic
formula of first-order logic is in Skolem normal form if it is in prenex normal form with only universal first-order quantifiers. Every first-order formula
Skolem_normal_form
Matrix form in linear algebra
Hermite normal form is an analogue of reduced echelon form for matrices over the integers Z {\displaystyle \mathbb {Z} } . Just as reduced echelon form can
Hermite_normal_form
Matrix normal form
In mathematics, the Smith normal form (sometimes abbreviated SNF) is a normal form that can be defined for any matrix (not necessarily square) with entries
Smith_normal_form
Standard form of a boolean function
In boolean logic, a disjunctive normal form (DNF) is a normal form of a logical formula consisting of a disjunction of conjunctions; it can also be described
Disjunctive_normal_form
Formalism of first-order logic
with the normal forms in propositional logic (e.g. disjunctive normal form or conjunctive normal form), it provides a canonical normal form useful in
Prenex_normal_form
Boolean polynomials as sums of monomials
Algebraic normal form (ANF) is a representation of functions in boolean algebra. Formulas written in ANF are also known as ring sum normal form (RSNF or
Algebraic_normal_form
Notation for context-free formal grammars
G, is said to be in Chomsky normal form (first described by Noam Chomsky) if all of its production rules are of the form: A → BC, or A → a, or S →
Chomsky_normal_form
Normal form used in database normalization
Boyce–Codd normal form (BCNF or 3.5NF) is a normal form used in database normalization. It is a slightly stricter version of the third normal form (3NF).
Boyce–Codd_normal_form
Canonical form of matrices over a field
algebra, the Frobenius normal form or rational canonical form of a square matrix A with entries in a field F is a canonical form for matrices obtained
Frobenius_normal_form
language theory, a noncontracting grammar is in Kuroda normal form if all production rules are of the form: AB → CD or A → BC or A → B or A → a where A, B,
Kuroda_normal_form
Logical formula with NOT only on variables
C)\end{aligned}}} The first example is also in conjunctive normal form, the next two are in both conjunctive normal form and disjunctive normal form, but the last
Negation_normal_form
Representation of a game in game theory
In game theory, normal form is a description of a game. Unlike extensive form, normal-form representations are not graphical per se, but rather represent
Normal-form_game
Database data model
database normalization, unnormalized form (UNF or 0NF), also known as an unnormalized relation or non-first normal form (N1NF or NF2), is a database data
Unnormalized_form
Expression that cannot be rewritten further
normal form if it cannot be rewritten any further, i.e. it is irreducible. Depending on the rewriting system, an object may rewrite to several normal
Normal form (abstract rewriting)
Normal_form_(abstract_rewriting)
Standard representation of a mathematical object
In mathematics and computer science, a canonical, normal, or standard form of a mathematical object is a standard way of presenting that object as a mathematical
Canonical_form
Database form
Domain-key normal form (DK/NF or DKNF) is a normal form used in database normalization which requires that the database contains no constraints other than
Domain-key_normal_form
Property of the ACID database system
affecting either account. The same term is also used in the definition of First normal form in database systems, where it instead refers to the concept that the
Atomicity_(database_systems)
derivation in normal form in the context of natural deduction refers to a proof which contains no detours — steps in which a formula is first introduced
Normal form (natural deduction)
Normal_form_(natural_deduction)
Probability distribution
a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of
Normal_distribution
Educational institution to train teachers
societal values, ideologies and dominant narratives in the form of curriculum. The first public normal school in the United States was founded in Concord, Vermont
Normal_school
Formalism to describe programming languages
computer science, Backus–Naur form or Pāṇini–Backus Form (BNF or PBF, pronounced /ˌbækəs ˈnaʊər/), also known as Backus normal form, is a notation system for
Backus–Naur_form
Database model
database that is in the first normal form is vulnerable to all types of anomalies, while a database that is in the domain/key normal form has no modification
Relational_model
Proof of Herbrand's theorem
Thoralf Skolem had considered the Skolemizations of formulas in prenex form as part of his proof of the Löwenheim–Skolem theorem (Skolem 1920). Herbrand
Herbrandization
American computer scientist (1946–1974)
his work co-developing the SQL database language and the Boyce-Codd normal form. Boyce was born in New York City on August 27, 1946. He attended Providence
Raymond_F._Boyce
Real root of the polynomial x^5+x+a
This form is used to define the Bring radical below. There is another one-parameter normal form for the quintic equation, known as Brioschi normal form w
Bring_radical
Concept in computability theory
T k {\displaystyle T_{k}} predicates can be used to obtain Kleene's normal form theorem for computable functions (Soare 1987, p. 15; Kleene 1943, p. 52—53)
Kleene's_T_predicate
Relational database theory concept
Join dependency Multivalued dependency (MVD) Database normalization First normal form Terry Halpin (2008). Information Modeling and Relational Databases
Functional_dependency
Game theory concept
of the same information set. The first normal-form game is the normal form representation of the whole extensive-form game. Based on the provided information
Subgame_perfect_equilibrium
Topics referred to by the same term
data in a database table that cannot be broken down any further (see first normal form) This disambiguation page lists articles associated with the title
Atomic_value
Problem of determining if a Boolean formula could be made true
The formula (x1 ∨ ¬x2) ∧ (¬x1 ∨ x2 ∨ x3) ∧ ¬x1 is in conjunctive normal form; its first and third clauses are Horn clauses, but its second clause is not
Boolean satisfiability problem
Boolean_satisfiability_problem
Operations on ordinals that extend classical arithmetic
arithmetic operations, which are usually described using the Cantor normal form for ordinals, and nimber operations. Ordinal numbers are like the counting
Ordinal_arithmetic
In mathematics, particularly in combinatorial group theory, a normal form for a free group over a set of generators or for a free product of groups is
Normal form for free groups and free product of groups
Normal_form_for_free_groups_and_free_product_of_groups
Collection of objects studied in music theory
consecutive pitches is between the first and last pitch listed". For example, the set (0,2) (a major second) is in normal form while the set (0,10) (a minor
Set_(music)
Probability distribution
X has a normal distribution. Equivalently, if Y has a normal distribution, then the exponential function of Y, X = exp(Y), has a log-normal distribution
Log-normal_distribution
Every square matrix with positive entries can be written in a certain standard form
Math. 21, 343–348. Idel, Martin; Wolf, Michael M. (2015). "Sinkhorn normal form for unitary matrices". Linear Algebra and Its Applications. 471: 76–84
Sinkhorn's_theorem
Block diagonal matrix of Jordan blocks
normal form (this may be a sufficient condition only for spectrally simple, usually low-dimensional matrices). Indeed, determining the Jordan normal form
Jordan_matrix
Broadway musical
Next to Normal is a 2008 American rock musical with book and lyrics by Brian Yorkey and music by Tom Kitt. The story centers on a mother who struggles
Next_to_Normal
Classification of pitch class sets
The prime form of a pitch class set is the most compact (i.e., leftwards packed or smallest in lexicographic order) of either the normal form of a set
Forte_number
Emblem of comic book superhero
Lantern, the Flash, Wonder Woman, Hawkman, and many others. In its current form, the logo is a red capital "S" inside a pentagonal yellow stylized shield
Superman_logo
Public university in Xi'an, Shaanxi, China
Shaanxi Normal University (SNNU; 陕西师范大学) is a public university in Chang'an District, Xi'an, Shaanxi, China. It is affiliated with the Ministry of Education
Shaanxi_Normal_University
2025 Marvel Studios film
struggling with his rocky form as a potential cure for his condition emerges and involves the android Dragon Man. A sequel to First Steps was reported to
The Fantastic Four: First Steps
The_Fantastic_Four:_First_Steps
Generalization of the one-dimensional normal distribution to higher dimensions
normal distribution, multivariate Gaussian distribution, or joint normal distribution is a generalization of the one-dimensional (univariate) normal distribution
Multivariate normal distribution
Multivariate_normal_distribution
Topics referred to by the same term
International Airport, Brazil, IATA code CNF Chomsky normal form, in formal language theory, first described by Noam Chomsky Configuration file, in computing
CNF
Marvel comics character
Spider-Man neutralizes the spores with electricity, returning Jameson to normal. While on the Moon, Jameson discovers the Godstone, a mystical other-dimensional
John_Jameson_(character)
Theorem of algebraic geometry and commutative algebra
geometric forms of Zariski's main theorem, including: A normal local ring is unibranch, which is a variation of the statement that the transform of a normal point
Zariski's_main_theorem
Fundamental theorem in probability theory and statistics
averages will closely approximate a normal distribution. The central limit theorem has several variants. In its common form, the random variables must be independent
Central_limit_theorem
French post-industrial/electronic band
number of experimental cassette releases as Die Form, starting with Die Form 1 in 1977, with the first Die Form vinyl release ('Die Puppe') appearing in 1982
Die_Form
British comedian
family: A Normal Family, A Normal Life, A Normal Love, A Normal Imagination, A Normal Nature, A Normal Universe, A Normal Communication, A Normal Ageing
Henry_Normal
Inability of the liver to perform its normal functions
inability of the liver to perform its normal synthetic and metabolic functions as part of normal physiology. Two forms are recognised, acute and chronic (cirrhosis)
Liver_failure
Possible form of a matrix
For a matrix with integer coefficients, the Hermite normal form is a row echelon form that can be calculated without introducing any denominator
Row_echelon_form
donned the type. A new mechanic called Mega Evolution—a temporary form change akin to normal evolution—was also added for more dynamic battles and stemmed
List_of_generation_VI_Pokémon
Probability distribution
theory and statistics, the skew normal distribution is a continuous probability distribution that generalises the normal distribution to allow for non-zero
Skew_normal_distribution
A matrix canonical form
In mathematics, in linear algebra, a Weyr canonical form (or, Weyr form or Weyr matrix) is a square matrix which (in some sense) induces "nice" properties
Weyr_canonical_form
Stages of education
Secondary School, there are three streamings: Express (Exp), Normal Academic (NA), and Normal Technical (NT), among which Exp and NT students study for four
Educational_stage
Rare congenital neuromuscular disorder
few weeks after birth in the most acute cases to normal life expectancy in the protracted SMA forms. Medications that target the genetic cause of the
Spinal_muscular_atrophy
Process for converting data into a "standard", "normal", or canonical form
has more than one possible representation into a "standard", "normal", or canonical form. This can be done to compare different representations for equivalence
Canonicalization
considered. On December 11, 2025, TSR released their first forecast for the season, expecting a near-normal season, with 14 named storms, 7 hurricanes, 3 major
2026 Atlantic hurricane season
2026_Atlantic_hurricane_season
Matrix that commutes with its conjugate transpose
square matrix A is normal if it commutes with its conjugate transpose A*: A normal ⟺ A ∗ A = A A ∗ . {\displaystyle A{\text{ normal}}\iff A^{*}A=AA^{*}
Normal_matrix
algebraic theory of fields, a normal basis is a special kind of basis for Galois extensions of finite degree, characterised as forming a single orbit for the
Normal_basis
Form of tree bark damage
cambium and phloem tissues are living, and form a new protective layer of cells as the outer bark pulls apart. Normal furrowed bark has a layer of bark over
Frost_crack
Pattern of oscillating motion in a system
A normal mode of a dynamical system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed
Normal_mode
Surface specified with parameters
parametric form. The curvature and arc length of curves on the surface, surface area, differential geometric invariants such as the first and second fundamental
Parametric_surface
Critical point where a periodic solution arises
two-dimensional subset of the dynamical system is approximated by a normal form, canonically expressed as the following time-dependent differential equation:
Hopf_bifurcation
Edwards, a graduate of Bridgewater Normal School (now Bridgewater State University), was the first president of Salem Normal School. Horace Mann (1796 – 1859)
History of education in Massachusetts
History_of_education_in_Massachusetts
Pathogenic type of misfolded protein
that can normally break down proteins. The normal form of the protein is called PrPC, while the infectious form is called PrPSc – the C refers to 'cellular'
Prion
unit normal vector, equiaffine differential geometry uses the affine or Blaschke normal, the induced affine connection, the affine fundamental form, the
Affine_differential_geometry
Group of mathematical theorems
{\displaystyle K/N} . Every normal subgroup of G / N {\displaystyle G/N} is of the form K / N {\displaystyle K/N} for some normal subgroup K {\displaystyle
Isomorphism_theorems
Mathematics of smooth surfaces
fundamental form encodes the extent to which its motion is in the direction of the normal vector n. In other words, the second fundamental form at a point
Differential geometry of surfaces
Differential_geometry_of_surfaces
Theoretical model of computation
recursive function. More specifically it aims to define rigorously head normal form reduction of a lambda term using call-by-name reduction. Thanks to its
Krivine_machine
Generalization of the normal-form game
the normal-form game defined by Rosen. He extended the theorem on existence of a Nash equilibrium, which John Nash originally proved for normal-form games
Concave_game
2014 film directed by Ryan Murphy
The Normal Heart is a 2014 American television drama film directed by Ryan Murphy and written by Larry Kramer, based on his 1985 play of the same name
The_Normal_Heart_(film)
British mathematician (1826–1883)
quadratic forms, and Smith–Minkowski–Siegel mass formula in number theory. In matrix theory he is visible today in having his name on the Smith normal form of
Henry_John_Stephen_Smith
Statistical transform
single division that replaces each one. Just as the basic form produces two standard normal deviates, so does this alternate calculation. z 0 = − 2 ln
Box–Muller_transform
Square matrix constructed from a monic polynomial
F^{n}} a cyclic F [ A ] {\displaystyle F[A]} -module, having a basis of the form { v , A v , … , A n − 1 v } {\displaystyle \{v,Av,\ldots ,A^{n-1}v\}} ; or
Companion_matrix
associated to a given link is called the Schubert normal form of the link (as this invariant was first defined by Schubert), and is precisely the fraction
2-bridge_knot
Local bifurcation in which two fixed points of a dynamical system collide and anni
{\displaystyle r>0} there are no equilibrium points. In fact, this is a normal form of a saddle-node bifurcation. A scalar differential equation d x d t
Saddle-node_bifurcation
Procreative biological processes of humanity
through the penis, resulting in fertilization of an ovum to form a zygote. While normal cells contain 46 chromosomes (23 pairs), gamete cells contain
Human_reproduction
Number with all digits equally frequent
In mathematics, a real number is said to be simply normal in an integer base b if its infinite sequence of digits is distributed uniformly in the sense
Normal_number
Medical condition
factor VIII levels, which explains the elevation in PTT. Normal levels do not exclude all forms of VWD, particularly type 2, which may only be revealed
Von_Willebrand_disease
Branch of ordinary differential equations
for all }}t\in \mathbb {R} .} This representation is called a Floquet normal form for the fundamental matrix solution ϕ ( t ) {\displaystyle \phi \,(t)}
Floquet_theory
Quadratic form related to curvatures of surfaces
the first fundamental form, it serves to define extrinsic invariants of the surface, its principal curvatures. More generally, such a quadratic form is
Second_fundamental_form
Decreased ability to see color or color differences
and perceptually uniform to all forms of color vision. Color blindness is any deviation of color vision from normal trichromatic color vision (often
Color_blindness
Aspect of probability theory
random variables. This is not to be confused with the sum of normal distributions which forms a mixture distribution. Addition of random variables, on the
Sum of normally distributed random variables
Sum_of_normally_distributed_random_variables
Relative weight based on mass and height
height. Major adult BMI classifications are: underweight (under 18.5), normal weight (18.5 to 24.9), overweight (25 to 29.9), and obese (30 or more).
Body_mass_index
Public university in Florence, Alabama, US
State Normal School at Florence, the first state-supported teachers college south of the Ohio River. Shortly thereafter, it became one of the first co-educational
University_of_North_Alabama
Chemical element with atomic number 1 (H)
universe, making up 75% of normal matter by mass. and >90% by number of atoms. In the early universe, protons formed in the first second after the Big Bang;
Hydrogen
Bacterial growth form that lack cell walls, derived from different bacteria
which prevents cell lysis by osmotic shock. L-form strains can be unstable, tending to revert to the normal form of the bacteria by regrowing a cell wall,
L-form_bacteria
This article lists forms of government and political systems, which are not mutually exclusive, and often have much in common. According to Yale professor
List_of_forms_of_government
Settled state following a crisis
next thing has started. It’s called the New Normal, and 2003 will be the first full year of it. The New Normal isn’t where you wait for the next boom. It’s
New_normal
Medical condition
Children with Hurler syndrome (severe MPS I) may appear normal at birth and develop symptoms over the first years of life. Developmental delay may become apparent
Mucopolysaccharidosis_type_I
Philosophical thought experiment
"Boltzmann baby" formed by rare fluctuation in an extremely hot, early universe. In Boltzmann brain scenarios, the ratio of Boltzmann brains to "normal observers"
Boltzmann_brain
FIRST NORMAL-FORM
FIRST NORMAL-FORM
Female
English
English name derived from the gem name, from Latin corallium, probably ultimately from Hebrew goral, CORAL means "small pebble."
Girl/Female
Indian
Soft
Male
English
English form of Norwegian Normund, NORMAND means "north protection."
Biblical
treasurer of Nergal
Boy/Male
Biblical
Treasurer of Nergal.
Surname or Lastname
English, Irish (Ulster), Scottish, and Dutch
English, Irish (Ulster), Scottish, and Dutch : name applied either to a Scandinavian or to someone from Normandy in northern France. The Scandinavian adventurers of the Dark Ages called themselves norðmenn ‘men from the North’. Before 1066, Scandinavian settlers in England were already fairly readily absorbed, and Northman and Normann came to be used as bynames and later as personal names, even among the Saxon inhabitants. The term gained a new use from 1066 onwards, when England was settled by invaders from Normandy, who were likewise of Scandinavian origin but by now largely integrated with the native population and speaking a Romance language, retaining only their original Germanic name.French : regional name for someone from Normandy.Dutch : ethnic name for a Norwegian.Jewish (Ashkenazic) : variant of Nordman.Jewish : Americanized form of some like-sounding Ashkenazic name.Swedish : from norr ‘north’ + man ‘man’.Albert Andriessen Bradt, a settler in Rensselaerswijck on the upper Hudson River in NY, was originally from Norway and was known as de Norrman (‘the Norwegian’). The waterway south of Albany which powered his mills became known as the Normanskill (‘the Norman’s Waterway’), by which name it is still known today.
Female
Italian
 Italian name invented by Felice Romani in his libretto for Belini's opera of the same name, derived from Latin norma, NORMA means "standard, rule." Compare with another form of Norma.
Surname or Lastname
English
English : occupational name for a keeper of swine, Middle English foreman, from Old English fÅr ‘hog’, ‘pig’ + mann ‘man’.English : status name for a leader or spokesman for a group, from Old English fore ‘before’, ‘in front’ + mann ‘man’. The word is attested in this sense from the 15th century, but is not used specifically for the leader of a gang of workers before the late 16th century.Czech and Jewish (from Bohemia, Moravia) : occupational name for a carter, Czech forman, a loanword from German.
Male
English
English form of Teutonic Nordemann, NORMAN means "northman."
Boy/Male
Hindu
Clean, Pure
Male
Scottish
Scottish form of Irish Gaelic Cormac, CORMAG means "son of defilement."
Girl/Female
Latin American
Rule; pattern. Can also be a feminine form of Norman: from the North.
Female
English
 Feminine form of English Norman, NORMA means "northman." Compare with another form of Norma.
Boy/Male
Scottish American
From the north valley.
Boy/Male
English
From the Thicket of Trees
Boy/Male
French Teutonic American English German
From the north.
Girl/Female
Indian, Punjabi, Sikh, Telugu
Pure; Without Any Impurity
Boy/Male
Shakespearean
Hamlet, Prince of Denmark' Fortinbras, Prince of Norway.
Girl/Female
American, Australian, British, Chinese, Christian, Danish, English, Finnish, French, German, Latin, Swedish
From the North; Pattern; Courage; Norseman; Rule; Standard; Female Version of Norman
Boy/Male
Afghan, Arabic
Handsome
FIRST NORMAL-FORM
FIRST NORMAL-FORM
Boy/Male
French American Welsh Latin Anglo Saxon English
Girl/Female
English
Rhyming, meaning pure; or Cady, meaning a rhythmic flow of sounds.
Boy/Male
Indian, Telugu
Acharya
Boy/Male
Norse
Brother of Geirrid.
Girl/Female
Afghan, Arabic, Danish, Hindu, Indian, Kannada, Marathi, Muslim
Acquirer; Obtainer
Boy/Male
Indian
Sky, Education, Instruction
Girl/Female
Australian
Different; Strange
Boy/Male
Tamil
Expert, Brave
Boy/Male
Indian
Name of a companion of the prophet
Boy/Male
Arabic, Hindu, Indian, Muslim, Sindhi
Rest; Response; Comfort
FIRST NORMAL-FORM
FIRST NORMAL-FORM
FIRST NORMAL-FORM
FIRST NORMAL-FORM
FIRST NORMAL-FORM
a.
According to an established norm, rule, or principle; conformed to a type, standard, or regular form; performing the proper functions; not abnormal; regular; natural; analogical.
v. t.
To gripe with the fist.
adv.
In a normal manner.
a.
Done in due form, or with solemnity; according to regular method; not incidental, sudden or irregular; express; as, he gave his formal consent.
a.
Not according to rule; abnormal.
n.
See Wormil.
n.
See Mormal.
a.
Having the form or appearance without the substance or essence; external; as, formal duty; formal worship; formal courtesy, etc.
a.
Denoting certain hypothetical compounds, as acids from which the real acids are obtained by dehydration; thus, normal sulphuric acid and normal nitric acid are respectively S(OH)6, and N(OH)5.
a.
Most eminent or exalted; most excellent; chief; highest; as, Demosthenes was the first orator of Greece.
n.
See Wormil.
a.
Sound; normal.
a.
Devoted to, or done in accordance with, forms or rules; punctilious; regular; orderly; methodical; of a prescribed form; exact; prim; stiff; ceremonious; as, a man formal in his dress, his gait, his conversation.
a.
Preceding all others of a series or kind; the ordinal of one; earliest; as, the first day of a month; the first year of a reign.
a.
According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.
a.
Denoting that series of hydrocarbons in which no carbon atom is united with more than two other carbon atoms; as, normal pentane, hexane, etc. Cf. Iso-.
n.
The quality, state, or fact of being normal; as, the point of normalcy.
a.
Of the best class; of the highest rank; in the first division; of the best quality; first-rate; as, a first-class telescope.
a.
Of or pertaining to Normandy or to the Normans; as, the Norman language; the Norman conquest.
a.
Human; belonging to man, who is mortal; as, mortal wit or knowledge; mortal power.